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Date:   Mon, 16 Mar 2020 12:17:13 -0400
From:   Johannes Weiner <hannes@cmpxchg.org>
To:     "Huang, Ying" <ying.huang@intel.com>
Cc:     Andrew Morton <akpm@linux-foundation.org>, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org, David Hildenbrand <david@redhat.com>,
        David Rientjes <rientjes@google.com>,
        Michal Hocko <mhocko@kernel.org>,
        Pankaj Gupta <pankaj.gupta.linux@gmail.com>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        Mel Gorman <mgorman@suse.de>, Vlastimil Babka <vbabka@suse.cz>,
        Minchan Kim <minchan@kernel.org>,
        Hugh Dickins <hughd@google.com>,
        Rik van Riel <riel@surriel.com>
Subject: Re: [PATCH -V2] mm: Code cleanup for MADV_FREE
Message-ID: <20200316161713.GD67986@cmpxchg.org>
References: <20200316063740.2542014-1-ying.huang@intel.com>
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On Mon, Mar 16, 2020 at 02:37:40PM +0800, Huang, Ying wrote:
> From: Huang Ying <ying.huang@intel.com>
> 
> Some comments for MADV_FREE is revised and added to help people understand the
> MADV_FREE code, especially the page flag, PG_swapbacked.  This makes
> page_is_file_cache() isn't consistent with its comments.  So the function is
> renamed to page_is_file_lru() to make them consistent again.  All these are put
> in one patch as one logical change.
> 
> Signed-off-by: "Huang, Ying" <ying.huang@intel.com>
> Suggested-by: David Hildenbrand <david@redhat.com>
> Suggested-by: Johannes Weiner <hannes@cmpxchg.org>
> Suggested-and-acked-by: David Rientjes <rientjes@google.com>
> Acked-by: Michal Hocko <mhocko@kernel.org>
> Acked-by: Pankaj Gupta <pankaj.gupta.linux@gmail.com>
> Cc: Dave Hansen <dave.hansen@linux.intel.com>
> Cc: Mel Gorman <mgorman@suse.de>
> Cc: Vlastimil Babka <vbabka@suse.cz>
> Cc: Minchan Kim <minchan@kernel.org>
> Cc: Hugh Dickins <hughd@google.com>
> Cc: Rik van Riel <riel@surriel.com>

Thanks, this is definitely an improvement.

Acked-by: Johannes Weiner <hannes@cmpxchg.org>